[tracing] Add browser test for background memory tracing

chrome/browser/extensions/api/cast_streaming/performance_test.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <map>
 #include <vector>
 
@@ skipping 585 matching lines @@
       } else if (HasFlag(kProxyBad)) {
         udp_proxy = media::cast::test::UDPProxy::Create(
             proxy_end_point, receiver_end_point,
             media::cast::test::BadNetwork(), media::cast::test::BadNetwork(),
             NULL);
       }
       receiver_end_point = proxy_end_point;
     }
 
     std::string json_events;
-    ASSERT_TRUE(tracing::BeginTracing(
-        "test_fps,mirroring,gpu.capture,cast_perf_test"));
+    ASSERT_TRUE(tracing::BeginTracing(base::trace_event::TraceConfig(
+        "test_fps,mirroring,gpu.capture,cast_perf_test", "")));
     const std::string page_url = base::StringPrintf(
         "performance%d.html?port=%d",
         getfps(),
         receiver_end_point.port());
     ASSERT_TRUE(RunExtensionSubtest("cast_streaming", page_url)) << message_;
     ASSERT_TRUE(tracing::EndTracing(&json_events));
     receiver->Stop();
 
     // Stop all threads, removes the need for synchronization when analyzing
     // the data.
@@ skipping 42 matching lines @@
     CastV2PerformanceTest,
     testing::Values(
         kUseGpu | k24fps,
         kUseGpu | k30fps,
         kUseGpu | k60fps,
         kUseGpu | k24fps | kDisableVsync,
         kUseGpu | k30fps | kProxyWifi,
         kUseGpu | k30fps | kProxyBad,
         kUseGpu | k30fps | kSlowClock,
         kUseGpu | k30fps | kFastClock));